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BASIC STATISTICS 1. SAMPLES, RANDOM SAMPLING AND SAMPLE STATISTICS 1.1. Random Sample. The random variables X 1 , X 2 , ..., X n are called a random sample of size n fromthe population f(x) if X 1 , X 2 , ..., X n are mutually independent randomvariables and the mar- ginal...
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TheTukey–Kramerprocedureisusedtoestablishwhichofthemeansaresignificantly differentfromoneanother. Criticalrange Copyright©2012PearsonAustralia(adivisionofPearsonAustraliaGroupPtyLtd)– 99781442548473/Berenson/BasicBusinessStatistics/3e 2 Mon-Tue4.92Meansaredifferent Mon-Wed1.94Meansaredifferent Mon-Thur5.64Meansare...
In order to calculate the optimum sample size and power for a study, researchers need to understand the purpose of sample size and power calculations, and important definitions relevant to sample size and power calculations. It is also necessary for researchers to understand what is power and the...
Basic Statistics for Business and EconomicsSocial sciencesCONTENTS CHAPTER 1 Introduction to Basic Statistics 1 Goals 1 What Is Statistics? 2 A Statistic and Statistics 3 Who Uses Statistics? 3 Misuses of Statistics 5 Types of Statistics 6 Descriptive Statistics 6 inferential Statistics 7 Use of ...
The mean and standard deviation of various data sets were derived. The comparative analyses of the anthropometrics from defined parameters were performed using the t-test in Graph Pad Prism, La Jolla, USA (v. 8.3.0) at p < 0.05. Descriptive statistics were carried out to indicate the ...
Therefore, storage requirement is minimized and retrieval of data is speeded up. The respective tables use a unique key (primary key field) to link data from different tables together and produce report and statistics from this data. Key Fields ...